× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
5
o
5
4
m
4
b
4
x
4
a
4
l
4
t
4
S
4
m
3
s
3
New Topic  
anja@phs.ae anja@phs.ae
wrote...
Posts: 480
Rep: 0 0
6 years ago
A vector has components Ay = 12 m and Ay = 5.0 m. What is the magnitude of vector ?
 
  A) 7.0 m
  B) 13 m
  C) 17 m
  D) 21 m
  E) 60 m

Question 2

Habitability generally refers to an environment capable of sustaining
 
  A) human life
  B) plant life
  C) microbial life only
  D) any kind of life

Question 3

Evidence that the recent rise in carbon dioxide concentration is due to human activity and not natural factors comes from
 
  A) the amount of the rise in the atmospheric concentration tracks almost perfectly with the amount of carbon dioxide being released by industry
  B) estimates of changes in the amount of carbon dioxide from natural sources such as volcanoes and the oceans can account for no more than about 1 of the rise in the atmospheric concentration
  C) the ratio of carbon isotopes is consistent with the increase in carbon dioxide levels coming primarily from the burning of fossil fuels
  D) all of these constitute evidence

Question 4

Consider diving 30.0 m below the surface of the ocean (density 1.03 grams/cc).
 
  (a) what is the gauge pressure at that depth, in atmospheres?
  (b) what is the absolute pressure at that depth, in atmospheres?
  (c) If you were in a submarine at that depth, what would be the total force on a 100. cm2 window?

Question 5

Consider the Sun and its largest planet Jupiter. Where on the line joining them is their center mass? Is it within or outside the Sun? (Sun-Jupiter avg distance 778.million km; Solar mass/Jupiter mass = 1.0  103; Solar diameter 1.4 million km)
 
  What will be an ideal response?
Read 57 times
2 Replies
Replies
Answer verified by a subject expert
MtnimpMtnimp
wrote...
Posts: 365
Rep: 0 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

anja@phs.ae Author
wrote...
6 years ago
This is very helpful, my teacher this year is not good
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  776 People Browsing
 114 Signed Up Today
Related Images
  
 167
  
 158
  
 673
Your Opinion
What percentage of nature vs. nurture dictates human intelligence?
Votes: 387

Previous poll results: How often do you eat-out per week?